Henry i



(No Model.)

H. 1. 00B & J. J. MCBRIDE. HATGHWAY DOOR FOR ELEVATORS.

Mb BEEF.

N. PETERS Phnlniilllcgmphor, WasMngtmm'DI O UNITED STATES PATENT OFFICE.

HENRY I. COE, OF NEIV YORK, N. Y., AND JOHN J. MCBRIDE, OF R-IDGEFIELD PARK, NEIV JERSEY; SAID MCBRIDE ASSIGNOR TO SAID COE.

HATCHWAY -DOOR FOR ELEVATORS.

SPECIFICATION forming part of Letters Patent No. 415,618, dated November 19, 1889.

Application filed April 2, 1889. Serial No. 305,742- (No model.)

To aZZ whom it may concern:

Be it known that we, HENRY 1. Con and JOHN JAMES MCBRIDE, citizens of the United States, residing, respectively, at New York, in the county and State of New York, and at Ridgefield Park, in the county of Bergen, in

the State of New Jersey, have invented oertain new and useful Improvements in Hatch- Doors, of which the following is a specification.

Our invention has for its object the provision of means whereby openings in hatch- (loors may be covered and uncovered automatically, it being desirable that the doors fill and completely shut the hatch when down, and yet that portions of the doors be shifted for one purpose or another as the doors are moved to allow the passage of the elevator-cage.

NVe will first describe our invention with reference to the accompanying drawings, and will point out in the claims the novel features.

Figure 1 is a perspective View of a hatchdoor having our improvement applied thereto, and showing one of the shields for the slotted arms removed. Fig. 2 is a perspective View of the slide-operating rod. Fig. 3 is a similar view of the link at one end thereof. Fig. 1 is a vertical sectional view through one of the slide-arms and its guide-roller. Fig. 5 is a vertical section of the guard, showing antifriction rollers.

1 is a hatch-door, having means, such as hinges 2 2, for fixing it to the floor.

3 3 are customary corner-posts of the elevator-shaft.

The door proper 1 is made of less width than the hatch, so that when turned on the hinges 2 it will pass the post 3, and in order that when the door is down the whole hatch may be covered a sliding door ais applied to the maindoor. The post 3 is generally made with a tongue 5, and in order to allow the hatch-door to shut completely the slide 1 is rabbeted so as to closely hug the post and tongue. IVith such arrangement, in order that the slide may be drawn back to allow the door 1 to clear the post 3, the slide must be first drawn directly away from the post,

so as to clear the tongue 5 from the rabbet, and then the slide may be moved as nearly directly as possible toward the center of the door. The operation of the slide is eifected by the movement of the door itself through the medium of a rod 6. This rod has a horizontal pivot '7, carried by lugs 8 on the slide 4, and a vertical pivot 9, engaging in one end of a link 10, which is twisted so as to pivot at its other end on a horizontal pin 11, carried by a lug 12 or brackets fixed above the floor or any suitable support. It will be obvious that such a method of pivoting the rod (3 at both ends,while not impairing its capacity as a push and pull rod for moving the slide 4, completely provides for its following of the slide as it moves upon the door.

Slots 1.3 are made in the slide 4, or, if the slide is so narrow as to just cover the opening at the side of the door, in rigid arms or lugs 1 1 14:, projecting from said slide. Pins 15, carried by the door 1 and having preferably anti-friction rollers 16 upon them, ride in the slots 13 and direct the slide 4 in the proper path. To give a movement at first directly away from the post 3, so as to clear the rabbet of the slide thereupon, and then as directly as possible toward the center or" the door, so as to clear the whole slide from the post, the slots 13 13 are made of the represented ogee shape. A metal guard 17 protects at the same time the edges of the slot 13 and the bottom of arms 14:. The pin 15 has a head to retain the rollers 16 and to prevent wabbling of the slide. The arms while sliding on the rollers 16 are held between flanges 18 on said rollers and a nut 19 on the pin.

These hatch-doors are much neglected when once applied, and it is expedient to have means for encludin g dirt from joints and other moving parts. We therefore provide shields 20, which cover the whole of slots 13 and are bolted to the arms 14. Another opening or slot 21 is made in the door to receive the lifting rope or cable 22, which carries the cage. (Not shown.) This slot must extend to the outer edge of the door, so that the latter may clear the cable when raised. is a cover for this slot.

Our invention comprises mechanism for opcrating, this cover from the slide 4. The movement of the cover 23 must be rapid, so that the cover may be completely out of the way of the rope 22 almost as soon as the door begins to move. In the construction shown the cover 23 turns in a plane parallel with the door 1,being pivoted near its inner end on a vertical pin or stud 24. At 25 the cover is cut I away to allow the cable to pass freely when the door is down. A pin 26 on the inner end (the short arm) of the cover 23 engages a shoulder 27 on a slotted rod 28, which is fixed to one of the arms 14, or directly to slide 4, and kept in place by a guard 29, having an anti-friction roller 30. The slotted rod 28 has an incline or cam at 31., and the door 1 has an incline or cam at 32. The attachment of rod 28 to arm 14 is preferably by means of ahinge 33. The slide 4 may obviously extend to a little beyond the slots 13 and the said slots be in its substance; or the slide and slotted arms may be a single plate of metal.

The operation of this construction is as follows: When, as the door begins to rise to allow the cage to pass, the slide 4 is forced inward by the mechanism first above described, the rod 28, by engagement of its shoulder 27 with the pin 26, will rapidly rotate the cover on its pivot 24 until the movement of the cover is arrested by any suitable stopsuch, for instance, as shown at 34. At this moment the free end of rod 28 strikes and is raised by cam 32, fixed to the door, and the shoulder 27 is disengaged from pin 26. As therod 28 continues its inward movement its slot rides freely upon the pin 26. The slot is of such length as to allow unrestricted movement of the arms 14. When, on the reverse movement of the door, the slide 4, with its arms 14, moves outward, the rod 28 moves back over pin 26 until the end of the slot is reached, which, striking the pin quickly, throws the cover around to closed position. It will be seen that while the guard 29, with its roller 30, holds the rod 28 down when it is in the position shown in Fig. 1, it allows the rod to rise to escape the pin 26 when the incline 31 has passed the roller 30. The hinge 33 allows the rod 28 to be detached from pin 26 when desired, and also enables the rod to adapt itself to the various positions of the cover and slide.

Having thus described our invention, the following is what we claim as new therein and desire to secure by Letters Patent:

1. The combination of a hatch-door, a slide having ogee slots therein, pins carried by the door and riding in said slots, and means for operating said slide, substantially as set forth.

2. The combination of a hatch-door, a slide at one side thereof, a pivoted cover for the cable-slot, a slotted and shouldered rod 23, pin 26, the roller 30, the incline 31, the cam 32, the hinge 33, and the stop 34, whereby the rod is automatically disconnected when the door has opened slightly, so as not to oppose the further motion of the door, and whereby said rod operates to return the cover at the closure of the door, in the manner explained.

3. The combination of ahatch-door, a slide at one side thereof, a cover for the cable-slot pivoted to the door, a slotted rod connected to said slide at one end, and having a shoulder which engages a pin on said pivoted cover, substantially as set forth. 3

4. The combination of doorl, slide 4, cover 23, pivoted near one end and having pin 26 and slotted rod 28, shouldered at 27, and cam 32, substantially as set forth.

5. The combination of the slide 4, having the slotted arms 14, the rod 6, the twisted link 10, the door 1,11aving the flanged rollers 16, and the pivots 15, all substantially as described.

6. The combination of the rod 6, the twisted link 10, the slide 4, its slotted arms 14, pins 15, which project from the hatch-door and having rollers 16, which engage within the arm-slots 13, the flanges 18, and the nuts 19,

HENRY I. COE. JOHN J. MCBRIDE.

\Vitnesses:

HARRY E. KNIGHT, GEORGE S. BELL. 

